'Borderlands 2' even cheaper through GMG along with Krieg and Season Pass

XMNR: Steam is running a weekend sale for Borderlands 2 that marks the Gearbox rpg-shooter hybrid for the PC all the way down to just $13.59. Deal hunters can get it even cheaper through GreenManGaming though along with discounts on the Season Pass and the just released Psycho Pack DLC featuring the new playable character, Krieg.